Quantum Efficiency Measurement of Lamp Phosphors in accordance with Radiometric Standards
-
- Ohkubo Kazuaki
- Otsuka Electronics
-
- Nakagawa Yasuo
- Saitama Univ.
Bibliographic Information
- Other Title
-
- 放射標準にもとづく蛍光体量子効率の測定
- ホウシャ ヒョウジュン ニ モトズク ケイコウタイ リョウシ コウリツ ノ ソクテイ
Search this article
Abstract
To measure the quantum efficiencies of lamp phosphors, a JCSS (Japan Calibration Service System) traceable measurement method that uses a polychromator, with improved optical design to reduce stray light, and an integrating sphere has been developed. To verify the measurement accuracy of this method, a monochromator, which has a 0 - 45°incident optical system, was used. The BRDF (Bidirectional Reflectance Distribution Function) of the phosphor was measured by a goniophotometer. A comparison was made between these JCSS traceable measuring devices on the 260-400 nm wavelength characteristics of the internal quantum efficiency of the blue phosphor BAM (BaMgAl10O17:Eu2+) , which has excitation characteristics up to 400 nm. The results agreed within 4 % of the difference of the measured values. This is a good agreement considering that it was a composite measure and that the uncertainty of the spectral irradiance standard in the spectral region is lower than 3 %. It has also been established that the proposed method using a polychromator and an integrating sphere shows sufficient measurement accuracy.
Journal
-
- JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
-
JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 95 (8A), 431-438, 2011
The Illuminating Engineering Institute of Japan
- Tweet
Details 詳細情報について
-
- CRID
- 1390001204082797440
-
- NII Article ID
- 10029130974
-
- NII Book ID
- AN00268860
-
- ISSN
- 1349838X
- 21851506
- 00192341
-
- NDL BIB ID
- 11196499
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed